Audio Source

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Acts as a microphone input. See Audio Sink for a block that outputs to a speaker.

Not all sampling rates will be supported by your hardware. The audio source can have multiple outputs depending upon your hardware. For example, set the outputs to 2 for stereo audio.

Parameters

Sample Rate
blah blah blah
Device Name
Leave the device name blank to choose default audio device. Other typical choices include:
  1. pulse
  2. hw:0,0
  3. plughw:0,0
  4. surround51
  5. /dev/dsp
ALSA users with audio trouble may try setting the device name to plughw:0,0
OK to Block
On by default, which should be used when this sink is not throttled by any other block.